You didn't mention C++ so this might not be that useful, but I really enjoy Andreas Kling [0] and his work on SerenityOS.

Even though I don't use C++ at all, he explains concepts so well that I've been able to learn a lot.

He also has some videos using Rust to build the SerenityOS Programming Language, Jakt [1]. The compiler eventually became self-hosted, so more recent videos don't contain Rust code, but earlier ones are a goldmine.

[0]: https://www.youtube.com/c/AndreasKling [1]: https://github.com/SerenityOS/jakt